From the bench:
Complete system, powers up, appears fully operational.  Shown with 1.5 Amp DC applied and triangle wave at 200 ma.

Center rear foot on TM501 missing.

7 Day right of return.

General description:
The Tektronix A6303 current probe measures higher amplitude, lower frequency currents. It clips onto conductors up to 21.1 mm (0.83 in.) in diameter. Its frequency range is DC to 15 MHz. It will measure continuous currents up to 100 A and peak currents up to 500 A, as long as the Amp*second product of 10,000 A*?s is not exceeded.

The A6302 and A6303 are also compatible with the 11A16 2-CH Current Probe Amplifier for the 11000 and DSA Series oscilloscopes. With the 11A16, the A6302 is rated for 10.5 A, and the A6303 for 52.5 A.

• 2 Meter Cable
• 100 Amps Continuous/500 Amps Peak
• DC to 15 MHz
• Up to 0.83 in. Conductor Diameter

AM503 Current Probe Amplifier

• Allows display of current on any scope with 10 mV/div sensitivity, 50 Ω or 1 MΩ input with load
• Attenuator is calibrated in 12 steps with a 1-2-5 sequence
• AC or DC coupling
• 5 MHz bandwidth limit selection (determined by probe)
• Front-panel DC Level adjustment, Balance, and Probe Degauss

TM 501

The TM501 Power Module supplies power required for a single TM500-Series of Modular Instrumentation . Input: 100, 110, 120, 200, 220 & 240 VAC, 48 Hz to 440 Hz, 35 W power consumption.